#include "C:\Users\Programmer\Desktop\source code\all_include.h"
#include <windows.h>
int main(void)
{   
    
    while(1)
    {
        Sleep(500);
        if(kbhit())
        {
            int a = 0;
            a = getch();
            printf("%d\n", a);
        }
    }

    getchar();
    return 0;
}